Iwelumo made an immediate impact, climbing off the bench to set up Kevin Hulme`s late winner in the 3-2 home victory.
Speaking after the game, Iwelumo said: "I was only told on Thursday afternoon that it was on the cards and I did actually say no to it at first because I thought it was a bit rushed.
"I went in and trained on Friday, spoke to Nigel Pearson (first team coach at Stoke) and we had a long chat about it and decided I should come up. I am here for a month and hopefully I can do a job."
The 22-year-old revealed how he is hoping to make an impact for The Minstermen and give a nudge to Stoke boss Gudjon Thordarson.
"I have just extended my contract at Stoke but there is a lot of competition among the strikers so this is an experience builder for me."
